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Fundamental Theories of Spatial Similarity Relations in Multi-scale Map Spaces 被引量:18
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作者 YAN Haowen 《Chinese Geographical Science》 SCIE CSCD 2010年第1期18-22,共5页
Similarity relation is one of the spatial relations in the community of geographic information science and cartography.It is widely used in the retrieval of spatial databases, the recognition of spatial objects from i... Similarity relation is one of the spatial relations in the community of geographic information science and cartography.It is widely used in the retrieval of spatial databases, the recognition of spatial objects from images, and the description of spatial features on maps.However, little achievements have been made for it by far.In this paper, spatial similarity relation was put forward with the introduction of automated map generalization in the construction of multi-scale map databases;then the definition of spatial similarity relations was presented based on set theory, the concept of spatial similarity degree was given, and the characteristics of spatial similarity were discussed in detail, in-cluding reflexivity, symmetry, non-transitivity, self-similarity in multi-scale spaces, and scale-dependence.Finally a classification system for spatial similarity relations in multi-scale map spaces was addressed.This research may be useful to automated map generalization, spatial similarity retrieval and spatial reasoning. 展开更多
关键词 similarity relation spatial relation multi-scale map spaces
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BARN:Behavior-Aware Relation Network for multi-label behavior detection in socially housed macaques
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作者 Sen Yang Zhi-Yuan Chen +5 位作者 Ke-Wei Liang Cai-Jie Qin Yang Yang Wen-Xuan Fan Chen-Lu Jie Xi-Bo Ma 《Zoological Research》 SCIE CSCD 2023年第6期1026-1038,共13页
Quantification of behaviors in macaques provides crucial support for various scientific disciplines,including pharmacology,neuroscience,and ethology.Despite recent advancements in the analysis of macaque behavior,rese... Quantification of behaviors in macaques provides crucial support for various scientific disciplines,including pharmacology,neuroscience,and ethology.Despite recent advancements in the analysis of macaque behavior,research on multi-label behavior detection in socially housed macaques,including consideration of interactions among them,remains scarce.Given the lack of relevant approaches and datasets,we developed the Behavior-Aware Relation Network(BARN)for multi-label behavior detection of socially housed macaques.Our approach models the relationship of behavioral similarity between macaques,guided by a behavior-aware module and novel behavior classifier,which is suitable for multi-label classification.We also constructed a behavior dataset of rhesus macaques using ordinary RGB cameras mounted outside their cages.The dataset included 65?913 labels for19 behaviors and 60?367 proposals,including identities and locations of the macaques.Experimental results showed that BARN significantly improved the baseline SlowFast network and outperformed existing relation networks.In conclusion,we successfully achieved multilabel behavior detection of socially housed macaques with both economic efficiency and high accuracy. 展开更多
关键词 Macaque behavior Drug safety assessment Multi-label behavior detection Behavioral similarity relation network
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TAR~*:an improved process similarity measure based on unfolding of Petri nets 被引量:4
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作者 WANG Wen-xing WANG Jian-min 《计算机集成制造系统》 EI CSCD 北大核心 2012年第8期1774-1784,共11页
Determining the similarity degree between process models was very important for their management,reuse,and analysis.Current approaches either focused on process model's structural aspect,or had inefficiency or imp... Determining the similarity degree between process models was very important for their management,reuse,and analysis.Current approaches either focused on process model's structural aspect,or had inefficiency or imprecision in behavioral similarity.Aiming at these problems,a novel similarity measure which extended an existing method named Transition Adjacent Relation(TAR) with improved precision and efficiency named TAR * was proposed.The ability of measuring similarity was extended by eliminating the duplicate tasks without impacting the behaviors.For precision,TARs was classified into repeatable and unrepeatable ones to identify whether a TAR was involved in a loop.Two new kinds of TARs were added,one related to the invisible tasks after the source place and before sink place,and the other representing implicit dependencies.For efficiency,all TARs based on unfolding instead of its reach ability graph of a labeled Petri net were calculated to avoid state space explosion.Experiments on artificial and real-world process models showed the effectiveness and efficiency of the proposed method. 展开更多
关键词 transition adjacent relation UNFOLDING Petri nets behavioral similarity
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Formula for calculating spatial similarity degrees between point clouds on multi-scale maps taking map scale change as the only independent variable 被引量:5
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作者 Yang Weifang Yan Haowen Li Jonathan 《Geodesy and Geodynamics》 2015年第2期113-125,共13页
The degree of spatial similarity plays an important role in map generalization, yet there has been no quantitative research into it. To fill this gap, this study first defines map scale change and spatial similarity d... The degree of spatial similarity plays an important role in map generalization, yet there has been no quantitative research into it. To fill this gap, this study first defines map scale change and spatial similarity degree/relation in multi-scale map spaces and then proposes a model for calculating the degree of spatial similarity between a point cloud at one scale and its gener- alized counterpart at another scale. After validation, the new model features 16 points with map scale change as the x coordinate and the degree of spatial similarity as the y coordinate. Finally, using an application for curve fitting, the model achieves an empirical formula that can calculate the degree of spatial similarity using map scale change as the sole independent variable, and vice versa. This formula can be used to automate algorithms for point feature generalization and to determine when to terminate them during the generalization. 展开更多
关键词 Spatial similarity degree Map generalization Map scale change Point clouds Quantitative description Spatial similarity relations Multi-scale map spaces Curve fitting method
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Similarity measure on intuitionistic fuzzy sets 被引量:5
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作者 PARK Jean-Ho HWANG Jai-Hyuk +2 位作者 PARK Wook-Je 魏荷 LEE Sang-Hyuk 《Journal of Central South University》 SCIE EI CAS 2013年第8期2233-2238,共6页
Study of fuzzy entropy and similarity measure on intuitionistic fuzzy sets (IFSs) was proposed and analyzed. Unlike fuzzy set, IFSs contain uncertainty named hesitance, which is contained in fuzzy membership function ... Study of fuzzy entropy and similarity measure on intuitionistic fuzzy sets (IFSs) was proposed and analyzed. Unlike fuzzy set, IFSs contain uncertainty named hesitance, which is contained in fuzzy membership function itself. Hence, designing fuzzy entropy is not easy because of many entropy definitions. By considering different fuzzy entropy definitions, fuzzy entropy on IFSs is designed and discussed. Similarity measure was also presented and its usefulness was verified to evaluate degree of similarity. 展开更多
关键词 similarity measure MULTI-DIMENSION discrete data relative degree power interconnected system
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Design of similarity measure for discrete data and application to multi-dimension 被引量:1
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作者 LEE Myeong-ho 魏荷 +2 位作者 LEE Sang-hyuk LEE Sang-min SHIN Seung-soo 《Journal of Central South University》 SCIE EI CAS 2013年第4期982-987,共6页
Similarity measure design for discrete data group was proposed. Similarity measure design for continuous membership function was also carried out. Proposed similarity measures were designed based on fuzzy number and d... Similarity measure design for discrete data group was proposed. Similarity measure design for continuous membership function was also carried out. Proposed similarity measures were designed based on fuzzy number and distance measure, and were proved. To calculate the degree of similarity of discrete data, relative degree between data and total distribution was obtained. Discrete data similarity measure was completed with combination of mentioned relative degrees. Power interconnected system with multi characteristics was considered to apply discrete similarity measure. Naturally, similarity measure was extended to multi-dimensional similarity measure case, and applied to bus clustering problem. 展开更多
关键词 similarity measure MULTI-DIMENSION discrete data relative degree power interconnected system
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Einstein’s Dark Energy via Similarity Equivalence, ‘tHooft Dimensional Regularization and Lie Symmetry Groups 被引量:4
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作者 Mohamed S. El Naschie 《International Journal of Astronomy and Astrophysics》 2016年第1期56-81,共26页
Realizing the physical reality of ‘tHooft’s self similar and dimensionaly regularized fractal-like spacetime as well as being inspired by a note worthy anecdote involving the great mathematician of Alexandria, Pytha... Realizing the physical reality of ‘tHooft’s self similar and dimensionaly regularized fractal-like spacetime as well as being inspired by a note worthy anecdote involving the great mathematician of Alexandria, Pythagoras and the larger than life man of theoretical physics Einstein, we utilize some deep mathematical connections between equivalence classes of equivalence relations and E-infinity theory quotient space. We started from the basic principles of self similarity which came to prominence in science with the advent of the modern theory of nonlinear dynamical systems, deterministic chaos and fractals. This fundamental logico-mathematical thread related to partially ordered sets is then applied to show how the classical Newton’s kinetic energy E = 1/2mv<sup>2</sup> leads to Einstein’s celebrated maximal energy equation E = mc<sup>2</sup> and how in turn this can be dissected into the ordinary energy density E(O) = mc<sup>2</sup>/22 and the dark energy density E(D) = mc<sup>2</sup>(21/22) of the cosmos where m is the mass;v is the velocity and c is the speed of light. The important role of the exceptional Lie symmetry groups and ‘tHooft-Veltman-Wilson dimensional regularization in fractal spacetime played in the above is also highlighted. The author hopes that the unusual character of the analysis and presentation of the present work may be taken in a positive vein as seriously attempting to propose a different and new way of doing theoretical physics by treating number theory, set theory, group theory, experimental physics as well as conventional theoretical physics on the same footing and letting all these diverse tools lead us to the answer of fundamental questions without fear of being labelled in one way or another. 展开更多
关键词 Equivalence relation SCALING Intermediate Asymptotic Golden Mean Scaling Einstein Self similarity Fractal Scaling E-INFINITY Special relativity Random Cantor Sets ‘tHooft Regularization Fractal Quantum Field Quantum Gravity Exceptional Lie Symmetry Groups
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On Similarities and Differences between Relative Pronouns in Relative Clauses
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作者 黄立进 《海外英语》 2011年第14期342-343,共2页
This paper,in two installments,attempts to clarify the finer points in the similarities and differences in the usage of relative pronouns,who,that and which,while they are in relative clauses.They are illustrated and ... This paper,in two installments,attempts to clarify the finer points in the similarities and differences in the usage of relative pronouns,who,that and which,while they are in relative clauses.They are illustrated and justified with examples.The paper,through the comparison of the usages of who,that and which,has shown their similarities and differences from one another.It will enable us to master their usages and help us in studying relative clauses. 展开更多
关键词 relatIVE PRONOUN similarity DIFFERENCE USAGE relatIVE CLAUSE
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A Similarity Based Fuzzy System as a Function Approximator
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作者 Asim Pal Injamam Ul Karim +1 位作者 Banibrata Mondal Swapan Raha 《International Journal of Intelligence Science》 2018年第4期89-116,共28页
In this paper, an attempt is made to prove that some similarity based fuzzy systems can be found to behave as function approximators. A typical similarity based fuzzy system is proposed and its behaviour is shown to h... In this paper, an attempt is made to prove that some similarity based fuzzy systems can be found to behave as function approximators. A typical similarity based fuzzy system is proposed and its behaviour is shown to have the said property. It elucidates the connection between similarity relation and similarity measure of fuzzy sets to fuzzy inference methodology. The concept of similarity relation is used in fuzzification of crisp input values. Similarity index is used in measuring approximate equality of fuzzy sets over a given universe of discourse of a linguistic variable. The similarity between the observation(s) and the antecedent of a rule is used in selecting rule(s) for possible firing and also in modifying the relation between the antecedent and consequent of the rule based on the specific observation. Inference is drawn through the usual composition and subsequently by projecting the modified fuzzy restriction acting on the variables of interest on the universe of the linguistic variable in the consequent of the rule. A specificity based defuzzification scheme is proposed for multiple-rule firing. It has been proved systematically that such a similarity based fuzzy system can uniformly approximate continuous functions to any desired degree of accuracy on a closed and bounded interval. Simulation results are presented for the well-known dc-motor problem. A comparative study is made to establish the validity and efficiency of the proposed similarity based fuzzy system. 展开更多
关键词 FUZZIFICATION DEFUZZIFICATION APPROXIMATE REASONING similarity relation similarity Index UNIVERSAL Approximator
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Similarity comprehensive evaluation of humanoid robot arm motion
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作者 Li liming Zhao Jing +1 位作者 Yan Chaojie Wang Chunrong 《High Technology Letters》 EI CAS 2019年第1期88-96,共9页
A suitable comprehensive evaluation method for similarity comprehensive evaluation of humanoid motion(mainly to robotic arm) is proposed.For different robotic arms, a static comprehensive evaluation model is establish... A suitable comprehensive evaluation method for similarity comprehensive evaluation of humanoid motion(mainly to robotic arm) is proposed.For different robotic arms, a static comprehensive evaluation model is established by projection pursuit evaluation based on indexes of humanoid robot arm motion in robotics and ergonomics field. Based on projection pursuit evaluation with timing information entropy and time degrees, a dynamic comprehensive evaluation method is proposed by linear weighting to each time's static model's indexes weight according to timing weighted vectors. Through comparing similarity comprehensive evaluation result based on static and dynamic comprehensive evaluation model, the results show that similarity based on dynamic comprehensive evaluation model is high. By comparing reliability, similarity and dispersion of static and dynamic comprehensive evaluation models, the results show that dynamic comprehensive evaluation result has better accuracy, stability and lower dispersion, and the result is more reasonable and real. Therefore, the dynamic comprehensive evaluation method proposed in this paper is more suitable for similarity comprehensive evaluation of humanoid robot arm motion. 展开更多
关键词 humanoid robot arm motion similarity comprehensive evaluation projection pursuit evaluation method dynamic comprehensive evaluation method relative efficiency
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Text duplication of papers in four medical related fields
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作者 Ping Ni Lianhui Shan +1 位作者 Yong Li Xinying An 《Journal of Data and Information Science》 CSCD 2023年第4期36-48,共13页
Purpose:To reveal the typical features of text duplication in papers from four medical fields:basic medicine,health management,pharmacology and pharmacy,and public health and preventive medicine.To analyze the reasons... Purpose:To reveal the typical features of text duplication in papers from four medical fields:basic medicine,health management,pharmacology and pharmacy,and public health and preventive medicine.To analyze the reasons for duplication and provide suggestions for the management of medical academic misconduct.Design/methodology/approach:In total,2,469 representative Chinese journal papers were included in our research,which were submitted by researchers in 2020 and 2021.A plagiarism check was carried out using the Academic Misconduct Literature Check System(AMLC).We generated a corrected similarity index based on the AMLC general similarity index for further analysis.We compared the similarity indices of papers in four medical fields and revealed their trends over time;differences in similarity index between review and research articles were also analyzed according to the different fields.Further analysis of 143 papers suspected of plagiarism was also performed from the perspective of sections containing duplication and according to the field of research.Findings:Papers in the field of pharmacology and pharmacy had the highest similarity index(8.67±5.92%),which was significantly higher than that in other fields,except health management.The similarity index of review articles(9.77±10.28%)was significantly higher than that of research articles(7.41±6.26%).In total,143 papers were suspected of plagiarism(5.80%)with similarity indices≥15%;most were papers on health management(78,54.55%),followed by public health and preventive medicine(38,26.58%);90.21%of the 143 papers had duplication in multiple sections,while only 9.79%had duplication in a single section.The distribution of sections with duplication varied among different fields;papers in pharmacology and pharmacy were more likely to have duplication in the data/methods and introduction/background sections,however,papers in health management were more likely to contain duplication in the introduction/background or results/discussion sections.Different structures for papers in different fields may have caused these differences.Research limitations:There were three limitations to our research.Firstly,we observed that a small number of papers have been checked early.It is unknown who conducted the plagiarism check as this can be included in other evaluations,such as applications for Science and technology projects or awards.If the authors carried out the check,text with high similarity indices may have been excluded before submission,meaning the similarity index in our research may have been lower than the original value.Secondly,there were only four medical fields included in our research.Additional analysis on a wider scale is required in the future.Thirdly,only a general similarity index was calculated in our study;other similarity indices were not tested.Practical implications:A comprehensive analysis of similarity indices in four medical fields was performed.We made several recommendations for the supervision of medical academic misconduct and the formation of criteria for defining suspected plagiarism for medical papers,as well as for the improved accuracy of text duplication checks.Originality/value:We quantified the differences between the AMLC general similarity index and the corrected index,described the situation around text duplication and plagiarism in papers from four medical fields,and revealed differences in similarity indices between different article types.We also revealed differences in the sections containing duplication for papers with suspected plagiarism among different fields. 展开更多
关键词 PLAGIARISM Medical related fields similarity index Sections containing duplication
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基于TOPSIS和GRA的信息安全风险评估
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作者 马冬青 崔涛 《信息安全研究》 CSCD 北大核心 2024年第5期474-480,共7页
信息安全风险评估是一项非常重要的信息安全保障活动.依据信息安全相关标准,可从资产、威胁和脆弱性3方面识别出重要的风险因素,并确定相应的信息安全风险评估指标.参考等保2.0确定风险评估指标是一种可行的方法.在进行信息安全风险评估... 信息安全风险评估是一项非常重要的信息安全保障活动.依据信息安全相关标准,可从资产、威胁和脆弱性3方面识别出重要的风险因素,并确定相应的信息安全风险评估指标.参考等保2.0确定风险评估指标是一种可行的方法.在进行信息安全风险评估时,采用熵权法进行客观的指标赋权,并结合优劣解距离法(technique for order preference by similarity to ideal solution,TOPSIS)和灰色关联分析(grey relational analysis,GRA)进行综合评估.实例分析表明,依据信息熵进行客观赋权相对减少了主观因素的影响;基于TOPSIS和GRA进行信息安全风险评估,综合被评价对象整体因素和内部因素,较有效地将多项信息安全风险评估指标综合成单一评分,便于对多个被评对象进行信息安全风险的择优与排序. 展开更多
关键词 信息安全 风险评估 优劣解距离法 灰色关联分析 等级保护
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一测多评法测定法制半夏曲中11种成分含量及其GRA、EW-TOPSIS质量评价
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作者 舒波 雷果平 袁斌 《医药导报》 CAS 北大核心 2024年第7期1120-1126,共7页
目的采用一测多评(QAMS)法同时测定法制半夏曲中肌苷、鸟苷、腺苷等11种成分含量,并建立其灰色关联度分析(GRA)联合熵权逼近理想解排序分析法(EW-TOPSIS)综合质量评价方法。方法采用Shimadzu C 18色谱柱;乙腈-0.5%醋酸为流动相,梯度洗脱... 目的采用一测多评(QAMS)法同时测定法制半夏曲中肌苷、鸟苷、腺苷等11种成分含量,并建立其灰色关联度分析(GRA)联合熵权逼近理想解排序分析法(EW-TOPSIS)综合质量评价方法。方法采用Shimadzu C 18色谱柱;乙腈-0.5%醋酸为流动相,梯度洗脱,流速1.0 mL·min-1;检测波长254和290 nm。以对甲氧基肉桂酸乙酯为内参比物质,计算其他10个成分的相对校正因子(RCF),测定各成分含量。采用GRA联合EW-TOPSIS模型对法制半夏曲进行综合质量评价。结果法制半夏曲中11种成分在一定浓度范围内线性关系良好,相关系数均>0.999;平均加样回收率96.94%~100.12%(RSD<2.0%,n=9);QAMS与外标法(ESM)实测值无明显差异。GRA模型相对关联度0.2903~0.6187,EW-TOPSIS模型相对接近度0.2114~0.6343;GRA和EW-TOPSIS模型综合评价结果基本一致。结论QAMS法便捷、准确,可用于法制半夏曲多指标成分定量控制,GRA联合EW-TOPSIS模型可用于法制半夏曲综合质量评价。 展开更多
关键词 法制半夏曲 一测多评法 多指标成分 相对校正因子 灰色关联度分析 熵权-逼近理想解排序法 质量评价
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基于直觉模糊相似关系的三支决策模型
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作者 吕明明 薛占熬 +2 位作者 杨梦丽 辛现伟 孙林 《数据采集与处理》 CSCD 北大核心 2024年第3期617-633,共17页
针对一些直觉模糊相似关系使直觉模糊集中对象间的相似度过于集中或者相异度过高,导致不合理的分类结果的问题,以及在构造直觉模糊相似关系时,对象间的相似度和相异度容易受到不重要属性条件信息影响的问题,本文在直觉模糊集和可能性理... 针对一些直觉模糊相似关系使直觉模糊集中对象间的相似度过于集中或者相异度过高,导致不合理的分类结果的问题,以及在构造直觉模糊相似关系时,对象间的相似度和相异度容易受到不重要属性条件信息影响的问题,本文在直觉模糊集和可能性理论基础上,提出一种基于直觉模糊相似关系的三支决策模型。首先,给出可能性测度和必要性测度的定义,结合Hausdorff度量,构造一种距离公式,并证明其性质,定义了直觉模糊集中对象间的相似度和相异度,构造了新的直觉模糊相似关系;然后定义了直觉模糊相似关系下的(λ_(1),λ_(2))-截集及其直觉模糊(λ_(1),λ_(2))-截集下的相似类,并进一步求出目标集的正域、负域和边界域;最后通过UCI数据集和实例验证了该模型的合理性和有效性。 展开更多
关键词 直觉模糊相似关系 可能性理论 三支决策 截集 相似度 相异度
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多层次权重优化的远程监督关系抽取模型
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作者 刘正 刘永坚 +1 位作者 解庆 李琳 《中文信息学报》 CSCD 北大核心 2024年第7期40-50,62,共12页
针对目前基于远程监督的关系抽取方法存在句袋权重分配不合理和关系抽取模型对句子关键特征提取不充分的问题,该文提出了一种多层次权重优化的远程监督关系抽取模型。在句袋层面,通过构建编解码网络获取句子的表征向量并对句袋进行重构... 针对目前基于远程监督的关系抽取方法存在句袋权重分配不合理和关系抽取模型对句子关键特征提取不充分的问题,该文提出了一种多层次权重优化的远程监督关系抽取模型。在句袋层面,通过构建编解码网络获取句子的表征向量并对句袋进行重构,使得句袋划分更加均衡;在句子层面,采用依赖路径注意力机制,增加模型对关键词的权重,提高关键特征的提取能力。模型在公共数据集NYT上的平均准确率达到79%,与有竞争力的主流方法相比有大约3%的提升,表明模型能够通过不同层次的权重优化降低噪声数据对模型的影响,从而提高关系抽取任务的准确率。 展开更多
关键词 远程监督 关系抽取 注意力机制 语义相似度
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面向紧邻关系重发现的事件日志采样方法及其应用
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作者 苏轩 刘聪 +3 位作者 闻立杰 孟晓亮 李彩虹 曾庆田 《计算机集成制造系统》 EI CSCD 北大核心 2024年第8期2832-2843,共12页
事件日志采样作为近年来流程挖掘领域一个新的研究热点,旨在提高流程挖掘任务的效率,如模型发现、合规性检查、流程预测等。然而目前已有的采样方法不能很好地保证挖掘模型的质量,且针对大规模事件日志的采样效率低。任务紧邻关系作为... 事件日志采样作为近年来流程挖掘领域一个新的研究热点,旨在提高流程挖掘任务的效率,如模型发现、合规性检查、流程预测等。然而目前已有的采样方法不能很好地保证挖掘模型的质量,且针对大规模事件日志的采样效率低。任务紧邻关系作为事件日志中行为描述的基本单元,在各类流程挖掘任务中起到了关键作用。鉴于此,提出了一个通用的面向紧邻关系重发现的事件日志采样方法,该方法可保证紧邻关系的重发现性。为了验证该采样方法的有效性,将其应用于提高已有模型挖掘算法的效率,为了对挖掘模型质量定量评估,提出了基于流程树的模型相似度方法。所提出的采样方法已在开源流程挖掘工具平台ProM6和PM4PY实现,基于12个公开事件日志数据集,将所提出的面向紧邻关系重发现的采样方法与已有方法从模型挖掘质量方面进行了定量比较,实验结果表明所提方法可以在保证模型质量的前提下,大幅提高模型发现效率。 展开更多
关键词 事件日志采样 紧邻关系重发现 质量评估 模型相似度
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表面相似性与呈现方式对关系类比推理的影响:匹配物效应
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作者 谢伟烨 刘宇澄 +2 位作者 蔡李雪 韩林株 刘志雅 《心理科学》 CSCD 北大核心 2024年第4期770-779,共10页
关系类比推理是将一种情境中的某种关系推导至另一种情境中的过程,被试由“源问题”中隐含的某种结构关系映射到“靶问题”中也存在这种关系,即进行了关系类比推理。本研究采用图片匹配范式,通过两个实验考察了表面相似性与呈现方式对... 关系类比推理是将一种情境中的某种关系推导至另一种情境中的过程,被试由“源问题”中隐含的某种结构关系映射到“靶问题”中也存在这种关系,即进行了关系类比推理。本研究采用图片匹配范式,通过两个实验考察了表面相似性与呈现方式对关系类比推理的影响,其中实验1探讨“源问题”和“靶问题”存在相同匹配物的情景,实验2探讨无相同匹配物的情景。实验1结果发现,同时呈现方式更有利于关系推理,低表面相似性更有利于关系推理;实验2发现,虽然同时呈现方式仍利于关系推理,但高表面相似性反而更利于关系推理。两个实验的对比分析揭示了一种“匹配物效应”:有相同匹配物情景下,低表面相似性比高表面相似性做出了更多的关系推理,而无相同匹配物情景下则出现了相反的结果。根据这些结果,讨论了“积极脑”的理论解释。 展开更多
关键词 关系推理 表面相似性 呈现方式 工作记忆 积极脑
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改进高斯云模型及其在装备保障体系能力评估中的应用
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作者 汪涛 周文雅 +1 位作者 郭继唐 王博 《系统工程与电子技术》 EI CSCD 北大核心 2024年第5期1673-1681,共9页
针对云模型在评估方法使用过程容易出现雾化特性差、评估结果不能直接使用的问题,提出一种改进的高斯云模型。该模型针对相同指标的专家评估结果,利用相似关系矩阵对专家进行聚类并赋权,求解每类专家的评估高斯云模型,并将其与权重结合... 针对云模型在评估方法使用过程容易出现雾化特性差、评估结果不能直接使用的问题,提出一种改进的高斯云模型。该模型针对相同指标的专家评估结果,利用相似关系矩阵对专家进行聚类并赋权,求解每类专家的评估高斯云模型,并将其与权重结合形成该评估指标的评估云模型;综合所有指标的评估云模型形成综合评估云;将综合评估云与云标尺进行比对得出评估结果。运用该方法对装备保障体系能力进行评估,并与传统云模型所得评估结果进行对比,证明了改进高斯云模型的可行性和有效性,为其在评估方法中的运用提供参考。 展开更多
关键词 改进高斯云模型 相似关系矩阵 聚类 装备保障体系
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蒙药三子散多指标成分的含量测定
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作者 许佳绮 刘妍妍 +4 位作者 白云霞 刘宏 夏慧敏 张慧文 王焕芸 《中南药学》 CAS 2024年第2期483-489,共7页
目的基于多指标成分含量测定结合灰色关联度分析(GRA)和逼近理想解排序法(TOPSIS)对蒙药三子散进行整体质量评价。方法采用高效液相色谱(HPLC)法测定15批三子散样品中诃子次酸、没食子酸、石榴皮鞣素、安石榴苷、jasminoside B、咖啡酸... 目的基于多指标成分含量测定结合灰色关联度分析(GRA)和逼近理想解排序法(TOPSIS)对蒙药三子散进行整体质量评价。方法采用高效液相色谱(HPLC)法测定15批三子散样品中诃子次酸、没食子酸、石榴皮鞣素、安石榴苷、jasminoside B、咖啡酸、柯里拉京、京尼平苷、诃子鞣酸、1,2,3,4,6-O-没食子酰葡萄糖、诃子林鞣酸、鞣花酸的含量,并对12种活性成分含量建立GRA和TOPSIS质量评价模型。结果12种指标成分在各自质量浓度范围内与峰面积呈良好的线性关系,r均不小于0.9995,平均回收率为96.72%~104.07%,RSD为1.4%~2.6%。GRA和TOPSIS分析结果基本一致,根据TOPSIS分析所得Ci值和GRA分析所得ri值可知,样品S1、S3、S4、S6、S10、S12、S14、S15排名前8。结论GRA-TOPSIS法排除了人为因素的干扰,提高了多指标决策分析的科学性与准确性,精确地反映了各评价方案之间的差距,可对三子散进行整体质量评价及优质资源筛选。 展开更多
关键词 三子散 含量测定 质量控制 灰色关联度分析 逼近理想解排序法
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融合节点信息和社区信息的复杂网络链路预测
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作者 孙博 俞敏 张冲 《计算机与数字工程》 2024年第6期1821-1829,共9页
链路预测作为复杂网络中一个充满挑战的研究方向,具有非常广泛的应用前景。链路预测被称为对网络中缺失或未观察到的链接的预测,最前沿的链路预测方法要么仅考虑节点之间相似性,要么仅简单挖掘社区之间的信息,并没有达到很好预测目的。... 链路预测作为复杂网络中一个充满挑战的研究方向,具有非常广泛的应用前景。链路预测被称为对网络中缺失或未观察到的链接的预测,最前沿的链路预测方法要么仅考虑节点之间相似性,要么仅简单挖掘社区之间的信息,并没有达到很好预测目的。为了解决上述问题,论文提出了一种衡量重叠社区与非重叠社区关系强度的度量标准,且为了更好地考虑社区之间的信息对预测的影响,还引入了新的社区划分方法,最后提出了一种同时考虑节点相似性和社区结构信息的链接预测框架。实验结果表明,与目前已有的算法相比,论文提出的链路预测算法在AUC精度上提升了0.2%~10.59%,证明了论文提出的方法是有效的。 展开更多
关键词 复杂网络 链路预测 节点相似性 社区关系强度 社区划分
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